CN102740193B - The reinforcing vibrating membrane of low profile loudspeaker transducer - Google Patents
The reinforcing vibrating membrane of low profile loudspeaker transducer Download PDFInfo
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- CN102740193B CN102740193B CN201210174589.8A CN201210174589A CN102740193B CN 102740193 B CN102740193 B CN 102740193B CN 201210174589 A CN201210174589 A CN 201210174589A CN 102740193 B CN102740193 B CN 102740193B
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- 230000003014 reinforcing effect Effects 0.000 title claims description 12
- 239000000725 suspension Substances 0.000 claims abstract description 57
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
- H04R1/2892—Mountings or supports for transducers
- H04R1/2896—Mountings or supports for transducers for loudspeaker transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Disclose the vibrating membrane for speaker transducer.The speaker transducer may include voice coil loudspeaker voice coil, bobbin, the first magnet assembly with circular inner magnet, top plate with annular, outer top plate and circular interior top plate, the second magnet assembly with annular outer magnet and circular inner magnet, the air gap limited by the circular inner magnet of the first magnet assembly, annular, outer top plate, circular interior top plate, the annular outer magnet of the second magnet assembly and circular inner magnet, and around suspension element.Vibrating membrane may include periphery, have a diameter larger than the diameter of the circular inner magnet of the first magnet assembly and less than the interior diameter of annular, outer top plate.The diameter of the circular inner magnet of first magnet is approximately equal to the diameter of the diameter of circular interior top plate and the circular inner magnet of the second magnet assembly, and annular, outer top plate interior diameter be approximately equal to the second magnet assembly annular outer magnet interior diameter.Vibrating membrane may also include neighboring, and it is configured to connect to inward flange and bobbin around suspension element, and bobbin is located in air gap, and vibrating membrane is circular and is configured as being situated coaxially within the circular inner magnet of the first magnet assembly.
Description
The cross reference of related application
This application claims U.S. Provisional Patent Application numbering 61/474,555, on April 12nd, 2011 is applied for, it is entitled
“LOUDSPEAKER MAGNET ASSEMBLY”；Numbering 61/474,527, applies on April 12nd, 2011, entitled
“CHANNEL MAGNET ASSEMBLY”；Numbering 61/474,611, applies on April 12nd, 2011, entitled " LOW
PROFILE LOUDSPEAKER WITH REINFORCED DIAPHRAGM”；Numbering 61/474,592, applies in April, 2011
12 days, entitled " LOW PROFILE LOUDSPEAKER SUSPENSION SYSTEM " priority, herein with reference on all
The full content of application is stated as reference.
Invention field
The present invention relates to speaker transducer, and more particularly to the configuration of speaker transducer internal vibration film.
Background technology
The audio reproducing apparatus of such as loudspeaker can be used in the broad range of application in numerous different technologies fields, institute
Stating field includes both user and industrial circle.Generally, loudspeaker is by one or more of box (box) actuator unit group
Into.Routinely, these actuator units are referred to as " loudspeaker drive ", " driver ", " speaker transducer ", or " transducing
Device ".Electric signal (expression sound) is converted into mechanical energy by speaker transducer using the combination of mechanically and electrically subassembly, its with
Sound wave is produced in the corresponding environmental sound field of electric signal.Pass through the flexible diaphragm in rapidly vibration transducer, the change of electric energy
It is converted into the respective change of acoustic energy (that is, sound wave).
Speaker transducer generally has two kinds of common structure types.The first structure type is conventional double suspensions
(dual-suspension) vibrating membrane of activation configuration, wherein speaker transducer is formed as cone, and diametrically
It is more much larger than voice coil loudspeaker voice coil.As an example, in figs. 1 a and 1b, a kind of known pair of conventional suspension speaker transducing is shown
Device 100.Figure 1A shows that the perspective view of known speaker transducer 100, and Figure 1B show known loudspeaker transducing
The sectional elevation of device 100.Shown speaker transducer 100 is moving-coil type electric piston driver, is also generally referred to as " dynamic
One example of the implementation of loudspeaker ".Known speaker transducer 100 can include vibrating membrane 102, support 104, ring
Shape portion (surround) 106, foreboard 108, magnet 110, back plate 112, voice coil loudspeaker voice coil 114, bobbin (former) 116, central magnetic pole
118th, hole (vent) 120, gap (gap) 122, bracing ring 124 and optional dust cover 126.
In this illustration, speaker transducer 100 includes being connected to support 104 (also referred to as via ring part 106
" frame (basket) ") vibrating membrane 102 (also referred to as " cone ").Be connected to the rear end of vibrating membrane 102 is that coil (is claimed
For voice coil loudspeaker voice coil 114), it is entangled on the cylindrical extensions of vibrating membrane 102, and the cylindrical extensions are referred to as bobbin 116.
It will be understood by those skilled in the art that in practice, the combination of both voice coil loudspeaker voice coil 114 and bobbin 116 can also be referred to simply as
It is " voice coil loudspeaker voice coil ".Bobbin 116 is connected to support 104 via bracing ring 124.The combination of ring part 106 and bracing ring 124, which is constituted, shakes
The suspension of dynamic film 102.Bracing ring 124 and ring part 106 are generally all as wheel rim (rim), and it is respectively by across bobbin
Flexible material between 122 and support 104, and vibrating membrane 102 and support 104 is made.The suspension is used to provide vibration
The hardness of film 102 and also for transducer 100 provide aeroseal.Generally, the voice coil loudspeaker voice coil via suspension in support 104
114th, the configuration of bobbin 116 and vibrating membrane 102 depends on the design of the vibrating membrane 102 relevant with bobbin 116 with voice coil loudspeaker voice coil 114
And size.In an example of operation, vibrating membrane 102 plays a part of being evacuated and creating the piston of sound wave.
Speaker transducer 100 also includes magnet 110, foreboard 108, back plate 112 and central magnetic pole 118 and (is also referred to as " magnetic
Pole piece ").Foreboard 108, back plate 112 are generally made up with central magnetic pole 118 of iron, steel or similar permeability magnetic material, with magnet
110 constitute magnetic circuit together, and magnet 110 is typically permanent magnet.Routinely, foreboard 108 and back plate 112 are all annular.Magnet
110 be cylindrical annular, and central magnetic pole 118 is hollow cylinder, and it is located at the inside of magnet 110 and in foreboard
Extend between 108 and back plate 112.Central magnetic pole 118 has an antelabium (lip) on the one end for extending to foreboard 108, and its is big
Cause perpendicular to central magnetic pole 118.The antelabium stretches out from central magnetic pole 118 towards foreboard 108, to form gap 122.It is logical
Often, the circular gap 122 of foreboard 108 and the formation magnetic circuit of central magnetic pole 118.Then, suspension voice coil loudspeaker voice coil 114 and line in gap 122
Coil 116, and bracing ring 124 plays a part of making bobbin 116 and voice coil loudspeaker voice coil 114 concentrate in gap 122, while also allowing
Bobbin 116 and voice coil loudspeaker voice coil 114 are freely moved forward and backward in gap 122.Central magnetic pole 118 can include optional cylinder
Hole 120, it prevents from constituting the cooling of pressure and offer to voice coil loudspeaker voice coil 114 behind the vibrating membrane 102 of magnet assembly.If there is
Hole 120, then equally may have optional dust cover 126 (also referred to as " filter screen "), to prevent from entering fragment by hole 120.
In an operation example, when the electric signal from amplifier passes through voice coil loudspeaker voice coil 114, voice coil loudspeaker voice coil 114 and bobbin 116
Become electromagnet.The mode flowed depending on electric current in voice coil loudspeaker voice coil 114, the north and south poles in the magnetic field created by voice coil loudspeaker voice coil 114 will
Positioned at one end of voice coil loudspeaker voice coil 114 or the other end.Equally, magnet 110 have north and south poles, and if the arctic in two magnetic field and
The South Pole is in line (north is to north and south to south) jointly, and the magnetic field of magnet 110 will push out voice coil loudspeaker voice coil 114, and (and connection is shaken
Dynamic film 102), or (north is to south and south to north), the magnet 110 if north and south poles in two magnetic field are in line on the contrary
Magnetic field will inwardly pull voice coil loudspeaker voice coil 114.
The activation configuration of second of type is the driver that edge drives vibrating membrane.In this configuration, vibrating membrane and
Voice coil loudspeaker voice coil has the diameter being substantially identical.In addition, the outward flange of vibrating membrane is connected to vibrating membrane to constitute vibration membrane module.So
Afterwards, this component is connected to voice coil loudspeaker voice coil.Stretch out component being connected to support around suspension assembly.In less loudspeaker group
In part, such as high pitch loudspeaker, and sometimes in Squawker, the driver that this edge drives vibrating membrane is frequently seen
Structure.In US patent number No.7,167,573, entitled " FULL RANGE LOUDSPEAKER ", on January 23rd, 2007
One kind that the driver of edge driving vibrating membrane is described in the patent for being published to inventor Clayton C.Williamson is shown
Example, is hereby incorporated by reference in its entirety.
One common problem of small size loudspeaker is due to becoming smaller in size for loudspeaker, thus is realized acceptable
LF-response just becomes more difficult.Because a greater amount of air of loudspeaker displacement is needed to realize lower frequency, and
And suspension hardness must be reduced to maintain the low resonance corresponding with the smaller driver of lighter weight.Loudspeaker can be with displacement
The amount of range of movement, i.e. Oscillation Amplitude that air capacity is allowed by the suspension of the area and loudspeaker of vibrating membrane, or swept volume come
Determine.In addition, higher suspension hardness reduces the motion of the vibrating membrane of given input, therefore, it is intended that obtaining minimum hardness.
Because less loudspeaker has less vibrating membrane and harder suspension, therefore manufacture has low-down hardness and high width
The ability for spending the loudspeaker of performance limits swept volume and performance.
In order to effectively operate, the suspension in less loudspeaker for example drives raising one's voice for vibrating membrane at edge
Those seen in device, it is necessary to allow the peak swing needed for vibration, while the basic linearly route of constraint vibration motion, to keep away
Exempt from the structure around voice coil loudspeaker voice coil contact.Accordingly, it would be desirable to prevent any inclination with constraint vibration film around suspension element, wave or other
Unrelated vibration, while allowing the amplitude for wishing the maximum possible of vibration.The existing structure of the loudspeaker of edge driving is generally asked
Topic is to be difficult to be accurately aligned with part during manufacture, because vibrating membrane is blinded by magnetic air gap (magnetic air gap).This
Just force and remove all alignment meters before arrangement vibrating membrane/coil block, and therefore cause relative to electronic
The voice coil position of machine it is uncertain.This is commonly known as " blind (blind) " assembling.
The other common problem of the existing structure of loudspeaker is that occur the vacation around suspension element part in high audio
Property vibration.These false vibrations can be transmitted to vibrating membrane by suspension, so as to reduce the high frequency performance of loudspeaker.Equally, it is right
In existing loadspeaker structure, the peak swing of vibration is limited in reduced size loudspeaker, small diameter is hampered and raises one's voice
The LF-response of device.In addition, the frame structure of smaller szie loudspeaker is hampered becomes sufficiently thin by these loudspeakers, for
Notebook computer is neutralized with electronic tablet device.
Therefore, there is the false vibration for minimizing suspension to vibrating membrane influence, increase voice coil loudspeaker voice coil/vibration in loadspeaker structure
The amount of the amplitude of oscillation of membrane module, to provide LF-response in small diameter speaker system and with being suitable for notebook
The demand of the low external form (low profile) of computer, electronic tablet and other low outline devices.
The content of the invention
According to the invention discloses a kind of vibrating membrane for speaker transducer.The speaker transducer can include sound
Circle, bobbin, the first magnet assembly with circular inner magnet, the top with annular, outer top plate and circular interior top plate
Plate, the second magnet assembly with annular outer magnet and circular inner magnet, by the circular inner magnet of the first magnet assembly,
The air gap that annular, outer top plate, circular interior top plate, the annular outer magnet of the second magnet assembly and circular inner magnet are limited,
And around suspension element.
The vibrating membrane including periphery, can have a diameter larger than the diameter of the circular inner magnet of the first magnet assembly and small
In the interior diameter of annular, outer top plate.The diameter of the circular inner magnet of first magnet is approximately equal to the diameter of circular interior top plate
The second magnet group is approximately equal to the interior diameter of the diameter of the circular inner magnet of the second magnet assembly, and annular, outer top plate
The interior diameter of the annular outer magnet of part.The vibrating membrane can also include neighboring, and it is configured to connect to around suspension
The inward flange and bobbin of component, wherein, the bobbin is located in air gap, and wherein the vibrating membrane is circular, and by
It is configured to coaxially be placed in the circular inner magnet of the first magnet assembly.
According to an aspect of the invention, there is provided a kind of vibrating membrane for speaker transducer, the loudspeaker is changed
Energy device includes voice coil loudspeaker voice coil, bobbin, the first magnet assembly with circular inner magnet, with annular, outer top plate and circular interior
The top plate of top plate, the second magnet assembly with annular outer magnet and circular inner magnet, by first magnet assembly
The circular inner magnet, the annular, outer top plate, the circular interior top plate, the annular of second magnet assembly
The air gap that external magnets and the circular inner magnet are limited, and around suspension element, the vibrating membrane includes：
Periphery, has a diameter larger than the diameter of the circular inner magnet of first magnet assembly and less than the annular
The interior diameter of external roof,
Wherein, the diameter of the circular inner magnet of first magnet is approximately equal to the straight of the circular interior top plate
The diameter of the circular inner magnet of footpath and second magnet assembly, and
Wherein, the interior diameter of the annular, outer top plate is approximately equal to outside the annular of second magnet assembly
The interior diameter of portion's magnet；And
Neighboring, it is configured to connect to the inward flange around suspension element and the bobbin, wherein, institute
Bobbin is stated in the air gap,
Wherein, the vibrating membrane is circular, and is configured as being placed coaxially on first magnet assembly
The circular inner magnet on.
Alternatively, the circular inner magnet is first magnet assembly.
Alternatively, the bobbin is connected to the voice coil loudspeaker voice coil, wherein, the voice coil loudspeaker voice coil is located in the air gap.
Alternatively, the speaker transducer further comprises dividing plate, and the circular suspension element be connected to it is described
Dividing plate.
Alternatively, the vibrating membrane is constructed by metal, plastics, dipping paper, reinforcing paper or impregnating woven product.
Alternatively, the metal is titanium, steel or aluminium.
Alternatively, the vibrating membrane is substantially planar.
Alternatively, the vibrating membrane further comprises the bulge-structure on the vibrating membrane.
Alternatively, the vibrating membrane is recessed or convex in shape.
Alternatively, the vibrating membrane is constructed by metal, plastics, dipping paper, reinforcing paper or impregnating woven product.
Alternatively, the metal is titanium, steel or aluminium.
Alternatively, the vibrating membrane further comprises the bulge-structure on the vibrating membrane.
Alternatively, first magnet assembly includes circular inner magnet and annular outer magnet, and the air gap bags
Include the gap between the circular inner magnet and the annular outer magnet.
Alternatively, the bobbin is connected to the voice coil loudspeaker voice coil, wherein, the voice coil loudspeaker voice coil is located in the air gap.
Alternatively, the vibrating membrane is substantially planar.
Alternatively, the vibrating membrane further comprises the bulge-structure on the vibrating membrane.
Alternatively, the vibrating membrane is constructed by metal, plastics, dipping paper, reinforcing paper or impregnating woven product.
Alternatively, the metal is titanium, steel or aluminium.
Alternatively, the vibrating membrane is recessed or convex in shape.
Alternatively, the vibrating membrane is constructed by metal, plastics, dipping paper, reinforcing paper or impregnating woven product.
Alternatively, the metal is titanium, steel or aluminium.
Alternatively, the vibrating membrane is additionally included in the bulge-structure on the vibrating membrane.
According to the following drawings and the research described in detail, other devices of the invention, equipment, system, method, feature and excellent
Point will be or will become obvious for the people with art technology.All such other systems, method, spy
Advantage of seeking peace is included in this specification, is within the scope of the present invention, and is all protected by appended claim
Shield.
Brief description of the drawings
By reference to following accompanying drawing, the present invention may be better understood.Portion in being the drawings necessarily drawn to scale
Part, but be to emphasize the principle of the invention according to illustrating.In the accompanying drawings, through different views, identical accompanying drawing mark
Note indicates corresponding part.
Figure 1A is the perspective view of known speaker transducer.
Figure 1B is the sectional elevation of the known speaker transducer shown in Figure 1A.
Fig. 2 is the isometric component of the decomposition of an example of the implementation of the speaker transducer according to the present invention
Figure.
Fig. 3 is the isometric perspective of the decomposition for the first and second magnet assemblies for showing the speaker transducer shown in Fig. 2
Figure.
Fig. 4 A are the top views of the magnet assembly of the speaker transducer shown in Fig. 2.
Fig. 4 B are the bottom views of the bottom plate of the speaker transducer shown in Fig. 2.
Fig. 5 is the sectional elevation of the speaker transducer shown in Fig. 2.
Fig. 6 is the enlarged perspective for irising out region shown in Fig. 5.
Fig. 7 is the enlarged perspective of the passage formed in the first magnet assembly of the speaker transducer shown in Fig. 2.
Fig. 8 is the isometric component of the decomposition of another example of the implementation of the speaker transducer according to the present invention
Figure.
Fig. 9 is the isometric perspective of the decomposition for the first and second magnet assemblies for showing the speaker transducer shown in Fig. 8
Figure.
Figure 10 A are the top views of the magnet assembly of the speaker transducer shown in Fig. 8.
Figure 10 B are the bottom views of the magnet assembly of the speaker transducer shown in Fig. 8.
Figure 11 is the sectional elevation of the speaker transducer shown in Fig. 8.
Figure 12 is the enlarged perspective of the circle zone shown in Figure 11.
Figure 13 is the enlarged perspective of the passage formed in the dividing plate of the speaker transducer shown in Fig. 8.
Figure 14 is the isometric component drawings of the decomposition of another example of the implementation of the speaker transducer of the present invention.
Figure 15 is the rear view of the dividing plate shown in Fig. 8.
Embodiment
In order to solve the problems of the prior art, according to the present invention, there is provided a kind of speaker transducer for voice coil loudspeaker voice coil
Speaker magnets component, it has low appearance structure.The speaker magnets component may include：First magnet assembly；Set
Top plate below first magnet assembly；It is arranged at the second magnet assembly below the top plate；And it is arranged at second magnetic
Bottom plate below body component.
First magnet assembly may include annular outer magnet and circular inner magnet.Annular outer magnet have overall diameter and
Interior diameter, wherein, interior diameter defines the circular central of sky in annular outer magnet.Circular inner magnet, which has, is less than annular
The diameter of the interior diameter of external magnets, and be disposed coaxially in the empty circular central of annular outer magnet.Circular interior
Length difference between the diameter of magnet and the interior diameter of annular outer magnet defines annular first magnet assembly air gap
(airgap)。
Top plate may include annular, outer top plate and circular interior top plate.Annular, outer top plate has overall diameter and interior diameter,
Wherein, interior diameter defines the circular central of sky in annular, outer top plate.Circular interior top plate, which has, is less than annular, outer top
The diameter of the interior diameter of plate, and be disposed coaxially in the empty circular central of annular, outer top plate.Circular interior top plate
Length difference between the interior diameter of diameter and annular, outer top plate defines annular roof plate air gap.
Second magnet assembly may include annular outer magnet and circular inner magnet.Annular outer magnet have overall diameter and
Interior diameter, wherein, interior diameter defines the circular central of sky in annular outer magnet.Circular inner magnet, which has, is less than annular
The diameter of the interior diameter of external magnets, and be disposed coaxially in the empty circular central of annular outer magnet.Circular interior
Length difference between the diameter of magnet and the interior diameter of annular outer magnet defines annular second magnet assembly air gap.
The circle of the diameter of the circular inner magnet of first magnet assembly and circular interior top plate and the second magnet assembly is interior
The diameter of portion's magnet is identical, so that the first magnet assembly air gap, top plate air gap and the second magnet assembly air gap are aligned, and limits
Magnetic air gap is determined.The magnetic air gap is configured as accommodating voice coil loudspeaker voice coil.
In this illustration, the magnetic air gap of speaker magnets component has the air gap bottom covered by bottom plate.The bottom plate can
To be the circle with girth, and the bottom plate includes the base tub of one or more radial arrangements, and it is outside the bottom plate
Week extends internally.These grooves can have the physical path (physical access) to magnetic air gap.
The annular outer magnet of first magnet assembly may include to be configured as connecting line is outwards passed into the first magnetic from voice coil loudspeaker voice coil
At least one passage of body component.The annular that the annular outer magnet of first magnet assembly can also be divided at least two segmentations is outer
Portion's magnet, wherein the annular outer magnet being each segmented includes limiting the side of at least two passages at least one passage
Edge.
More specifically, turning to Fig. 2, show that one of the implementation of the speaker transducer 200 according to the present invention is shown
The isometric component view of the decomposition of example.Speaker transducer 200 generally can be circular in structure, and can include
Vibrating membrane (diaphragm) 202, the first magnet assembly 204 and the second magnet being disposed between top plate 208 and bottom plate 210
Component 206.As an example, for example, the first magnet assembly 204, the second magnet assembly 206, top plate 208 and bottom plate 210 can
To connect (that is, physical connection or be combined together) with two parts (two-part) epoxy resin.Speaker transducer 200 may be used also
Including around suspension element 212, for suspended vibration film 202 and voice coil loudspeaker voice coil 214, voice coil loudspeaker voice coil 214 has to stretch out from the voice coil loudspeaker voice coil 214
A pair of connecting lines 216 (also referred to as stretching wire).Voice coil loudspeaker voice coil 214 is the line of line 216 of being intertwined and connected around bobbin 218.
As indicated, vibrating membrane 202 can generally include planar circular structure；However, it would be recognized by those skilled in the art that
Vibrating membrane 202 may include other structures, such as concave or convex.Changed using the vibrating membrane 202 of even shape with reducing loudspeaker
The height of energy device 200, so that the shell that it is generally desirable to for compared with the overall lower external form in midget plant is provided, it is described relatively low outer
Type device is for example designed for the loudspeaker in portable computer, notebook computer, network and tablet personal computer and mobile device.
Vibrating membrane 202 can also be made up of any suitable material that can provide hardness, such as titanium, aluminium or other metals, or nonmetallic
Material, such as plastics or dipping/reinforcing paper or various impregnating woven product., can be by such as anthogram in order to provide extra hardness
The bulge-structure projection of case 218 is on vibrating membrane 202.
First magnet assembly 204 is typically circular in structure, and be may include outside circular inner magnet 220 and annular
Portion's magnet 222 and 224.Circular inner magnet 220 and annular outer magnet 222 and 224 can be typically used for loudspeaker transducing
Any of magnet material of device.When assembling, can be same by circular inner magnet 220 and annular outer magnet 222 and 224
Separate axle, be used to allow the first magnet assembly air gap 226 that voice coil loudspeaker voice coil 214 and bobbin 218 are passed through to limit, will such as enter below
What one step was described in detail.In addition, annular outer magnet 222 and 224 can be segmentation, as indicated, one or more to limit
Passage 228, it is used to connecting line 216 outwards passing speaker transducer 200 from voice coil loudspeaker voice coil 214.Although fig 1 illustrate that limiting two
Two annular outer magnets 222 and 224 of individual passage 228, although it will be understood by those skilled in the art that can be used in this example
There is no the only one annular outer magnet of passage or only one of which passage.
The second magnet assembly 206 is gone to from the first magnet assembly 204, the second magnet assembly 206 is typically to justify in structure
Shape, and circular interior permanent magnet 230 and annular, outer permanent magnet 232 can be included.Interior permanent magnet 230 and ring
Permanent magnet 232 can be typically used for any of magnet material of speaker transducer outside shape.When assembling, can be with
Interior permanent magnet 230 and annular, outer permanent magnet 232 are coaxially spaced apart, are used to allow voice coil loudspeaker voice coil 214 and coil to limit
The second magnet assembly air gap 234 that frame 218 is passed through.
In another example, annular, outer permanent magnet 232 can be segmented into multiple ring segments, be used to carry to limit
For one or more passage (not shown) of sound outlet (venting).By providing outlet, from the back side of vibrating membrane 202
Acoustic pressure can be sent to loudspeaker " box " (box) or shell (enclosure) (not shown), and it is routinely bass reflex or sound
Sound suspension.Passage (not shown) may include arrival end and the port of export, and it with rounded angle, bevelling or can be additionally formed
To realize the pressure wave propagated from the second magnet assembly air gap 234 to speaker housings.
Top plate 208 is turned to, top plate 208 is typically circular in structure, and can include the He of circular interior top plate 236
Annular, outer top plate 238.Top plate 208 can be made up of magnetic soft iron, steel or any other similar magnetic permeable material, the magnetic conductance material
Material is suitable for playing top plate function and constitutes magnetic together with the first magnet assembly 204, interior permanent magnet 230 and bottom plate 210
Road.When assembling, circular interior top plate 236 and annular, outer top plate 238 can be coaxially spaced apart, is used to allow voice coil loudspeaker voice coil to limit
214 and the top plate air gap 240 that passes through of bobbin 218.
Bottom plate 210 is typically circular in structure, and can include the base tub of one or more radial arrangements
242, it extends internally from the periphery of bottom plate 210.Bottom plate 210 can be by magnetic soft iron, steel or any other similar magnetic conductance material
Material is made, the magnetic permeable material be suitable for playing bottom plate function and with the first magnet assembly 204, interior permanent magnet 230 and top
Plate 208 constitutes magnetic circuit together.
In fig. 3 it is shown that the first magnet assembly 204 of speaker transducer 200 (shown in Fig. 2) and the second magnet
The isometric perspective view of the decomposition of component 206.First magnet assembly 204 is the transducer magnetic for low profile loudspeaker transducer
Body.First magnet assembly 204 may include the annular outer magnet with periphery, overall diameter and interior diameter.The interior diameter is in annular
The circular central of sky is defined in external magnets, and between the diameter of circular inner magnet and the interior diameter of annular outer magnet
Length difference define annular first magnet assembly air gap.Annular outer magnet includes one or more passages, this or many
Individual passage extends inward into the first magnet assembly air gap from the periphery of annular outer magnet, and the first magnet assembly air gap by with
Receiving voice coil loudspeaker voice coil is set to, and the passage is configured as the external device (ED) by connecting line from voice coil loudspeaker voice coil through transducer magnet.
More specifically, in figure 3, those skilled in the art also are appreciated that, can be combined annular outer magnet 222 and 224 with
An annular outer magnet (not shown) is formed, to replace the two annular outer magnets 222 and 224.Therefore, outside an annular
Portion's magnet (not shown) is by only one of which passage, rather than two passages shown in Fig. 3.Equally, the He of annular outer magnet 222
224 can be divided into more than two parts (as Fig. 3 is presently shown), and the part more than the two will form more than two
Passage 228, as Fig. 3 is presently shown.In addition, as described above, in the second magnet assembly 206, annular, outer permanent magnet
232 sectionals circularize section, to limit the one or more passage (not shown) for being used for providing sound outlet.
Fig. 4 A and 4B are turned to, in Figure 4 A, the magnet assembly of speaker transducer 200 (shown in Fig. 2) is shown
Top view.The top view show the first magnet assembly 204.As illustrated, the diameter of the first magnet assembly 204 is somewhat
Less than the diameter of the second magnet assembly 206, and the passage 228 limited between annular outer magnet 222 and 224 section can be with
Stretch out from the first magnet assembly air gap 226 (as defined in Fig. 2 and Fig. 3), for example, along the first magnet assembly air gap
The tangent line of 226 diameter dimension.It will be understood by those skilled in the art that passing through the first magnet assembly air gap 226, top plate air gap 240
Combination with the second magnet assembly air gap 234 can limit total air gap 400.In addition, total air gap 400 defines cylinder ring cavity,
It starts from the top surface of the first magnet assembly 204, and ends at the top surface of bottom plate 210.In the bottom of total air gap 400
It is the open area that limits of groove 242 by the cylinder ring cavity of total air gap 400 and the radial arrangement of bottom plate 210.
In figure 4b, the bottom view of the bottom plate 210 of speaker transducer 200 (Fig. 2 is illustrated) is shown.As institute
Illustrate, the groove 242 of the radial arrangement of bottom plate 210 extends internally from the overall diameter of bottom plate 210 towards its center.
In this example, air flue (air passage) 402 is formed between single groove 242 and total air gap 400.
Fig. 5 is the sectional elevation of Fig. 2 speaker transducer 200.In fig. 5 it is shown that for supporting overlapping piece (stack)
Bottom plate 210, overlapping piece include cylindrical permanent magnet (that is, the second magnet assembly 206), the magnet assembly of top plate 208 and first
204.In this illustration, in the overlapping piece, it is the magnet group of top plate 208 and first to be arranged on the second magnet assembly 206
Part 204 (it is placed on the top of top plate 208).
As shown in figure 5, the diameter of circular inner magnet 220 and circular interior top plate 236 and interior permanent magnet 230 is straight
Footpath is identical, so as to the first magnet assembly air gap 226, and the magnet assembly air gap 234 of top plate air gap 240 and second is aligned, and limits total
Air gap 400.Therefore, total air gap 400 is respectively on circular inner magnet 220, annular outer magnet 224, circular interior top
The annular formed between plate 236, annular, outer top plate 238, circular interior permanent magnet 230 and annular, outer permanent magnet 232
Space.Equally, total air gap 400 is " magnetic air gap ".Then, voice coil loudspeaker voice coil 214 and bobbin 218 are arranged in magnetic air gap 400, and
And upwardly extend to be connected to vibrating membrane 202 at the periphery 500 of vibrating membrane 202.Then, by existing around suspension element 212
Appropriate position support bobbin 218 and the vibrating membrane 202 being connected to, are connected to bobbin 218, such as around suspension element 212
Further described below.Voice coil loudspeaker voice coil 214 can also include shell (wrapper) (not shown), and it is by voice coil loudspeaker voice coil 214 and bobbin
218 be wrapped in.Therefore, suspension element 212 or any other loudspeaker assembly are connected or attached to bobbin when being related to
When 402, the shell of voice coil loudspeaker voice coil 214 and bobbin 402 can be directly attached to, or when bobbin 218 is without shell it is directly attached
It is connected to voice coil loudspeaker voice coil 214 and bobbin 218.It would be recognized by those skilled in the art that bottom plate 210, the second magnet assembly can be used
206th, the other configurations of top plate 208, the first magnet assembly 204 and voice coil loudspeaker voice coil 214 and bobbin 218, without departing from the present invention's
Scope.
Fig. 6 is Fig. 5 enlarged perspective for irising out region 502, and there is provided pair with voice coil loudspeaker voice coil 214, bobbin 218 and shaking
The more detailed diagram of configuration of the relevant circular suspension element 212 of dynamic film 202.As described above, voice coil loudspeaker voice coil 214 and bobbin 218
Be placed on respectively annular outer magnet 224, annular, outer top plate 238, the inner side 600 of annular, outer permanent magnet 232,
602 and 604 with the outside 606,608 and 610 of circular inner magnet 220, circular interior top plate 236 and interior permanent magnet 230
Between magnetic air gap 400 in.
Then, voice coil loudspeaker voice coil 214 and bobbin 218 along with circular inner magnet 220, circular interior top plate 236 and it is internal forever
The outside 606,608 of long magnet 230 is parallel with 610, and leaves the direction of magnetic air gap 400 and upwardly extend.In this illustration, line
Coil 218 is upwardly extended towards the point in the top of the first magnet assembly 204, with the phase of vibrating membrane 202 with speaker transducer 200
Connection.Bobbin 218 is attached to vibrating membrane 202 at its upper end 612.The upper end 612 of bobbin 218 is via known in the art
The neighboring 500 of vibrating membrane 202 is attached to for vibrating membrane 202 to be installed to the adhesive or other mechanisms of bobbin 218
Downside.In this illustration, neighboring 500 is configured to the end flange (end flange) of square；However, alternative
Perimeter edge configuration can be for vibrating membrane 202 be attached into bobbin 218.For example, vibrating membrane 202 can be formed with annular to
Under passage, the downward passage of the annular can connect the upper end 612 of bobbin 218 sideways, in order to position and tightening operation.
As illustrated in figure 6, the first magnet group can will be attached to around suspension element 212 by such as adhesive
Part 204, to support bobbin 218 and vibrating membrane 202, and keeps voice coil loudspeaker voice coil 214 and bobbin 218 to be aligned in magnetic air gap 400.
It may include inward flange 614 around suspension element 212, inward flange 614 can include short flange 616, as shown.Can be positioned at shaking
Dynamic film 202 is attached to the position below the point of the upper end 612 of bobbin 218, will be attached around the inward flange 614 of suspension element 212
It is connected to bobbin 218.The top surface of annular outer magnet 224 can will be attached to around the outward flange 618 of suspension element 212
620。
Configure and arrange around suspension element 212, to exist to voice coil loudspeaker voice coil 214, bobbin 218 and/or the component of vibrating membrane 202
The upward direction not limited in addition, and the degree of restriction of amplitude peak is provided in relatively low direction, wherein, around suspension element
212 play a part of slowing down bottom plate 210 to voice coil loudspeaker voice coil 214 and the impact of bobbin 218.Although current configuration is shown with 180
The circular suspension element 212 of angle or slightly smaller string to arc (subtending) is spent, but is available with surrounding suspension element 212
Known optional configuration, such as a series of coaxial corrugated (corrugation) implements the present invention.
Fig. 7 is the perspective of the amplification of the passage constituted in the first magnet assembly 204 of Fig. 1 speaker transducer 200
Figure.For the sake of clarity, it is not shown in this view around suspension element 212.As indicated, the first magnet assembly 204
Passage 228 may include arrival end 700 and the port of export 702, and they are used to connecting line 216 outwards passing loudspeaker from voice coil loudspeaker voice coil 214
Transducer 200.In operation, at one end, connecting line 216 can be connected to bobbin by integrated ribbon conductor (not shown)
218, as shown.In opposite end, connecting line 216 may be coupled to the electric terminal (not shown) of speaker transducer 200.
Fig. 8 is turned to, according to invention shows for voice coil loudspeaker voice coil, around the loudspeaker transducing of suspension element and vibrating membrane
Another example of the implementation of speaker magnets component in device.Speaker magnets component can include：Dividing plate；First magnetic
Body component；It is arranged at the top plate below the first magnet assembly；It is arranged at the second magnet assembly below top plate；It is arranged at the second magnetic
Bottom plate below body component；And latch (plug).
The dividing plate can include centre bore (central bore), and the first magnet assembly can also include centre bore.
Top plate can include annular, outer top plate and circular interior top plate.Annular, outer top plate has overall diameter and interior diameter, wherein interior
Diameter defines the circular central of sky in annular, outer top plate.Circular interior top plate has interior straight less than annular, outer top plate
The diameter in footpath, and be positioned coaxially in the empty circular central of annular, outer top plate.The diameter of circular interior top plate and
Length difference between the interior diameter of annular, outer top plate defines annular roof plate air gap.Circular interior top plate can also include center
Hole.
Second magnet assembly can include annular outer magnet and circular inner magnet.Annular outer magnet has overall diameter
And interior diameter, wherein, interior diameter defines the circular central of sky in annular outer magnet.The diameter of circular inner magnet is less than
The interior diameter of annular outer magnet, and be positioned coaxially in the empty circular central of annular outer magnet.Circular interior
Length difference between the diameter of magnet and the interior diameter of annular outer magnet defines annular second magnet assembly air gap.In circular
Portion's magnet can also include centre bore.
In addition, bottom plate can include centre bore, and latch is configured as being arranged on bottom plate, the circle of the second magnet assembly
In the centre bore of internal magnets, circular interior top plate and the first magnet assembly.
The diameter of first magnet assembly and circular interior top plate and the diameter phase of the circular inner magnet of the second magnet assembly
Together, to cause top plate air gap and the second magnet assembly air gap to be aligned, and magnetic air gap is defined.The magnetic air gap is configured as accommodating
Voice coil loudspeaker voice coil.The dividing plate can be the circle with girth, and wherein the dividing plate includes extending inward into dividing plate from the periphery of dividing plate
One or more path in heart hole, to allow connecting line to be passed through from voice coil loudspeaker voice coil to the device outside speaker transducer.
Fig. 8 shows the isometric of the decomposition of another example of the implementation of the speaker transducer 800 of the present invention
Component drawings.Speaker transducer 800 is typically circular in structure, and can include vibrating membrane 802, the first magnet assembly
804, and the second magnet assembly 806 being arranged between top plate 808 and bottom plate 810.In some implementations, the first magnet group
Part 804, the second magnet assembly 806, top plate 808 and bottom plate 810 can be attached (for example, such as physical connection or combination) one
Rise, for example, passing through two parts epoxy resin.It also show dividing plate 812 and for suspended vibration film 802 and the ring of voice coil loudspeaker voice coil 816
Around suspension element 814, voice coil loudspeaker voice coil 816 has a pair of the connecting lines 818 stretched out from it, or paper tinsel wire.Voice coil loudspeaker voice coil 816 can be around
Bobbin 819 to wind.First magnet assembly 804, the second magnet assembly 806, top plate 808 and bottom plate 810 can pass through latch
820 are assembled together, and latch 820 is configured to pass through the center of these components of speaker transducer 800.
As indicated, vibrating membrane 802 generally may include flat circular structure；However, one skilled in the art will recognize that, shake
Dynamic film 802 may also comprise other structures, such as concave or convex.Using the vibrating membrane 802 of planar shaped to reduce loudspeaker transducing
The height of device 800, to provide the shell of overall lower external form, this shell is often desirable to be used in less application apparatus,
For example designed for the loudspeaker in portable computer, notebook computer, network computer and tablet personal computer and mobile device.Shake
Dynamic film 802 can be made up of any suitable material of offer hardness, such as titanium, aluminium or other metals, or nonmetallic materials, example
Such as plastics or dipping/reinforcing paper or various impregnating woven product., can be by for example flower-shaped pattern 822 in order to provide other hardness
Bulge-structure is protruded on vibrating membrane 802.
Dividing plate 812 can generally include loop configuration and centre bore 824, and centre bore 824 is used to allow voice coil loudspeaker voice coil 816 and bobbin
819 at least a portion is there through as will be discussed in detail.Dividing plate 812 can also include a pair of relative paths
826, for connecting line 818 outwards to be passed to the outside of speaker transducer 800 from voice coil loudspeaker voice coil 816.Relative path 826 is similar
Passage 228 shown in Fig. 2 and 3,4A and 7, except passage 228 is located in magnetic material, such as the first magnet assembly
204, and path 826 is then located in non magnetic dividing plate 812.
As indicated, the first magnet assembly 804 can be substantially discoidal magnet, it, which has, is used to accommodate latch 820
First magnet center hole 828.First magnet assembly 804 can be typically used for any of magnet in speaker transducer
Material.
The second magnet assembly 806 is gone to from the first magnet assembly 804, the second magnet assembly 806 is typically to justify in structure
Shape, and circular interior permanent magnet 830 and annular, outer permanent magnet 834, circular interior permanent magnet 830 can be included
With the second magnet center hole 832.Circular interior permanent magnet 830 and annular, outer permanent magnet 834 can be commonly used to
Any of magnet material in speaker transducer.When assembling, can be by outside circular interior permanent magnet 830 and annular
Portion's permanent magnet 834 is coaxially separated, and is used to allow the second magnet air gap that voice coil loudspeaker voice coil 816 and bobbin 819 pass through to limit
836。
Top plate 808 is turned to, top plate 808 can be circular in structure, and can include circular interior top plate
838 and annular, outer top plate 842, circular interior top plate 838 has centre bore 840.Top plate 808 can by magnetic soft iron, steel or
Any other is suitable for playing top plate function and together with the first magnet assembly 804, the second magnet assembly 806 and bottom plate 810
The magnetic permeable material for constituting magnetic circuit is made.When assembling, can be by circular interior top plate 838 and annular, outer top plate 842 coaxially
Separate, be used to allow the top plate air gap 844 that voice coil loudspeaker voice coil 816 and bobbin 819 pass through to limit.
Bottom plate 810 may include disc-shape and bottom center hole 846.Bottom plate 810 can by magnetic soft iron, steel or it is any its
He is made similar magnetic permeable material, the magnetic permeable material be suitable for playing bottom plate function and with the first magnet assembly 804, the second magnetic
Body component 806 and top plate 808 form magnetic circuit together.
In fig. 9 it is shown that the first magnet assembly 804 of speaker transducer 800 (shown in Fig. 8) and the second magnet
The isometric perspective view of the decomposition of component 806.As described above, the first magnet assembly 804 can be substantially discoidal magnet, its
With the first magnet center hole 828 for accommodating latch 820.What the second magnet assembly 806 was of a generally circular or rounded in structure, and
And circular interior permanent magnet 830 and annular, outer permanent magnet 834 can be included, circular interior permanent magnet 830 has the
Two magnet center holes 832.
Figure 10 A are the top views of the magnet assembly of Fig. 8 speaker transducer 800.The top view show via latch
First magnet assembly 804 of 820 assemblings, top plate 808, the second magnet assembly 806 and bottom plate (not shown in this view).One
In a little implementations, the first magnet assembly 804, top plate 808, the second magnet assembly 806 and bottom plate (not shown) can be by viscous
Mixture, welding, press-fit or other fixed forms link together at latch.As shown, the diameter of top plate 808 is slightly smaller than
The diameter of second magnet assembly 806.It will be understood by those skilled in the art that passing through the magnet assembly air gap of top plate air gap 844 and second
836 combination defines total air gap 1000.In addition, total air gap 1000 defines cylindrical annular cavity, the cylindrical annular chamber
Body starts from the top surface of top plate 808, and ends at the top surface of bottom plate 810.
Figure 10 B are the bottom views of the magnet assembly of Fig. 8 speaker transducer 800.The bottom view is shown via latch
First magnet assembly 804 (being not shown in this view) of 820 assemblings, top plate 808 (is not shown) in this view,
Second magnet assembly 806 and bottom plate 810.As illustrated, when assembling, latch 820 is via in the bottom plate in bottom plate 810
Heart hole 840 is engaged with the bottom of speaker transducer 800.
Figure 11 is the sectional elevation of Fig. 8 speaker transducer 800.In fig. 11 it is shown that the bottom for supporting overlapping piece
Plate 810, overlapping piece includes cylindrical permanent magnet (that is, the second magnet assembly 806), the magnet assembly 804 of top plate 808 and first.
In this example, it is top plate 808 to be arranged on the second magnet assembly 806.In this example, in overlapping piece, it is arranged at
On two magnet assemblies 806 be top plate 808, (it is arranged on the circular interior top of top plate 808 to the first magnet assembly 804
The top of plate 838) and dividing plate 812.Dividing plate 812 has downside (underside) 1100, and it may include the table of a pair of coaxial radiation shapes
Face 1102 and 1104, they are configured to supplement the diameter chi of annular external roof 842 and annular, outer permanent magnet 834
It is very little.
As seen in fig. 11, the diameter of the first magnet assembly 804 and circular interior top plate 838 and circular interior permanent magnet
830 diameter is identical, so that the magnet assembly air gap 806 of top plate air gap 844 and second is aligned, and defines total air gap
1000.Therefore, total air gap 1000 is respectively in circular interior top plate 838, annular, outer top plate 842, circular interior permanent magnetic
The annular space formed between body 830 and annular, outer permanent magnet 834.Equally, total air gap 1000 is " magnetic air gap ".
Then, voice coil loudspeaker voice coil 816 and bobbin 819 are arranged in magnetic air gap 1000, and upwardly extended with vibrating membrane 802
Periphery 1106 at be connected to vibrating membrane 802.Then, by being connected to the circular suspension element 814 of bobbin 819 by bobbin
819 support in position with the vibrating membrane 802 being connected to, as will be described further.Voice coil loudspeaker voice coil 816 can also include
Shell (not shown), voice coil loudspeaker voice coil 816 and bobbin 819 are wrapped in interior by it.Therefore, when being related to suspension element 814 or any
When other loudspeaker assemblies connect or attach to bobbin 819, the shell of voice coil loudspeaker voice coil 816 and bobbin 819 can be directly attached to,
Or be directly attached to when 819 no shell of bobbin on voice coil loudspeaker voice coil 816 and bobbin 819.
Also as indicated, when assembling, latch 820 is engaged with overlapping piece, and extend through bottom center hole 840, the second magnetic
Body centre bore 832, top plate centre bore 840, (wherein, the first magnet of centre bore 824 of the first magnet center hole 828 and dividing plate 812
Component 804 is also located in the centre bore 824 of dividing plate 812).It would be recognized by those skilled in the art that bottom plate 810, can be used
Two magnet assemblies 806, top plate 808, the other configurations of the first magnet assembly 804 and voice coil loudspeaker voice coil 816 and bobbin 819, without inclined
From the scope of the present invention.
Figure 12 is Figure 11 enlarged drawing for irising out region 1108, and there is provided pair with voice coil loudspeaker voice coil 816, bobbin 819 and shaking
The more detailed diagram of configuration of the relevant suspension element 814 of dynamic film 802.As described above, voice coil loudspeaker voice coil 816 and bobbin 819 are set
Be placed in respectively dividing plate 812 centre bore 824, annular, outer top plate 842 and annular, outer permanent magnet 834 outside 1202,
1204 and 1206 and first magnet assembly 804, the inner side 1208 of circular interior top plate 838 and circular interior permanent magnet 830,
In magnetic air gap 1006 between 1210 and 1212.
Then, voice coil loudspeaker voice coil 816 and bobbin 819 along with the first magnet assembly 804, circular interior top plate 838 and circle
The inner side 1208,1210 of portion's permanent magnet 830 is parallel with 1212, and leaves the direction of magnetic air gap 1000 and upwardly extend.At this
In example, bobbin 819 is upwardly extended towards the point in the top of the first magnet assembly 804, to be shaken with speaker transducer 800
Dynamic film 802 is connected.Bobbin 819 is attached to vibrating membrane 802 at its upper end 1214.The upper end 1214 of bobbin 819 is passed through
Vibrating membrane 802 is attached to by the adhesive or other mechanisms known in the art for vibrating membrane 802 to be installed into bobbin 819
Neighboring 1106 downside.In this illustration, neighboring 1106 is configured to square end flange；However, can
Vibrating membrane 802 is attached to bobbin 819 using the configuration of other perimeter edges.For example, vibrating membrane 802 can be formed with annular
Passage directed downwardly, the annular passage directed downwardly can connect the upper end 1214 of bobbin 819 sideways, in order to position and fasten behaviour
Make.
As illustrated in Figure 12, circular suspension element 814 can be attached to the platform of the centre bore 824 around dividing plate 812
(landing) region 1216, to support bobbin 819 and vibrating membrane 802, and keep voice coil loudspeaker voice coil 816 and bobbin 819 alignedly
In magnetic air gap 1000.Inward flange 1218 can be included around suspension element 814, inward flange 1218 can include short flange
1220, as shown.It can be connected to positioned at vibrating membrane 802 at the position of the lower section of the point of the upper end 1214 of bobbin 819, by ring
Inward flange 1218 around suspension element 814 attaches to bobbin 819, for example, pass through adhesive.It can will surround suspension element 814
Outward flange 1222 be attached to land regions 1216.
Figure 13 is the enlarged perspective of the path formed in the dividing plate of Fig. 8 speaker transducer 800.Risen in order to clear
See, be not shown in this view around suspension element 814.As indicated, the path 826 of dividing plate 812 can include arrival end
1302 and the port of export 1304, they are used to paper tinsel wire (that is, connecting line 818) passing speaker transducer from voice coil loudspeaker voice coil 816
800.In operation, paper tinsel wire 818 can be connected to the bobbin 819 of voice coil loudspeaker voice coil 816 by integrated ribbon conductor (not shown),
As shown.
According to invention shows with voice coil loudspeaker voice coil, around suspension element and the loudspeaker magnetic of the speaker transducer of vibrating membrane
Another example of the implementation of body component.The speaker magnets component can include：First magnet assembly；It is arranged at first
Top plate below magnet assembly；It is arranged at the second magnet assembly below top plate；It is arranged at the bottom plate below the second magnet assembly；
And latch.
First magnet assembly can include annular outer magnet and circular inner magnet.Annular outer magnet has overall diameter
And interior diameter, wherein interior diameter defined in annular outer magnet sky circular central.The diameter of circular inner magnet is less than
The interior diameter of annular outer magnet, and be positioned coaxially in the empty circular central of annular outer magnet.Circular interior
Length difference between the diameter of magnet and the interior diameter of annular outer magnet defines annular first magnet assembly air gap.In circular
Portion's magnet may also include centre bore.
Top plate can include annular, outer top plate and circular interior top plate.Annular, outer top plate has overall diameter and interior straight
Footpath, wherein interior diameter define the circular central of sky in annular, outer top plate.It is outer that the diameter of circular interior top plate is less than annular
The interior diameter of portion's top plate, and be positioned coaxially in the empty circular central of annular, outer top plate.Circular interior top plate
Length difference between the interior diameter of diameter and annular, outer top plate defines annular roof plate air gap.Circular interior top plate can also be wrapped
Include centre bore.
Second magnet assembly may include annular outer magnet and circular inner magnet.Annular outer magnet have overall diameter and
Interior diameter, wherein interior diameter define the circular central of sky in annular outer magnet.Circular inner magnet, which has, is less than annular
The diameter of the interior diameter of external magnets, and be positioned coaxially in the empty circular central of annular outer magnet.In circular
Length difference between the diameter of portion's magnet and the interior diameter of annular outer magnet defines annular second magnet assembly air gap.It is circular
Internal magnets may also include centre bore.
In addition, bottom plate can include centre bore, and latch is configured as coordinating the circle in bottom plate, the second magnet assembly
In the centre bore of the circular inner magnet of internal magnets, circular interior top plate and the first magnet assembly.
The circle of the diameter of the circular inner magnet of first magnet assembly and circular interior top plate and the second magnet assembly is interior
The diameter of portion's magnet is identical so that the first magnet assembly air gap, top plate air gap and the alignment of the second magnet assembly air gap, and limits
Magnetic air gap.The magnetic air gap is configured as accommodating voice coil loudspeaker voice coil.
In this illustration, the magnetic air gap of speaker magnets component has the air gap bottom covered by bottom plate.Bottom plate can be with
It is the circle with girth, and the bottom plate includes the bottom of one or more radial arrangement extended internally from the periphery of bottom plate
Board slot.These grooves can have to the physical path of magnetic air gap.
The annular outer magnet of first magnet assembly can include at least one passage, and it is configured as connecting line from sound
Circle outwards passes the first magnet assembly.The annular outer magnet of first magnet assembly may be divided into the ring of at least two segmentations
Shape external magnets, wherein, the annular outer magnet being each segmented includes edge, and it is limited at least one passage at least
Two passages.
Annular, outer top plate can also be segmented, wherein annular, outer top plate has periphery, and annular, outer top
Plate is divided into the annular, outer top plate of at least two segmentations.In this illustration, the annular, outer top plate being each segmented includes
The edge of one or more air ducts is limited in top plate, wherein, the air duct radially inwardly extends to top from periphery
Plate air gap.
More specifically, in fig. 14 it is shown that another of the implementation of the speaker transducer 1400 of the present invention shows
The decomposition isometric component view of example.The example of the implementation is similar to the implementation of the invention shown in Fig. 2 and 8, area
Other point is that speaker transducer 1400 includes the top plate 1402 and latch 1404 of segmentation in this example.This example feature exists
In top plate 1402, it is segmented into annular, outer top plate section 1406, to limit one or more top plate air ducts 1408, so that
Sound is allowed to release.Top plate 1402 can also include circular interior top plate 1410 and top plate air gap 1412.By providing outlet, come
Acoustic pressure behind self-excited oscillation film 1414 can be for delivery to speaker housings (not shown).
Similar to the example shown in Fig. 2 and 11, in this illustration, speaker transducer 1400 can also include：It surround
Suspension element 1416；Bobbin 1418；Voice coil loudspeaker voice coil 1420；Connecting line 1422；The circular inner magnet of first magnet assembly 1425
1424；The second magnetic with circular interior permanent magnet 1428, the magnet air gap 1432 of annular, outer permanent magnet 1430 and second
Body component 1426；Bottom plate 1434；And bulge-structure 1436.
In addition, different from Figure 11 but similar to Fig. 2, in this illustration, the first magnet assembly 1425 can also include two
The individual magnet assembly air gap 1439 of annular outer magnet 1438 and first and in annular outer magnet 1438 at least one lead to
Road 1440, it is used to connecting line 1422 outwards passing speaker transducer 1400 from voice coil loudspeaker voice coil 1420.Bottom plate 1434 can also be wrapped
The base tub 1441 of multiple radial arrangements is included, it extends internally from the periphery of bottom plate 1434.In addition, being different from Fig. 2 but similar
In Figure 11, in this illustration, speaker transducer 1400 can include the first magnet center in the first magnet assembly 1425
The second magnet center hole 1446 in top plate centre bore 1444, the second magnet assembly 1426 in hole 1442, top plate 1402, bottom plate
Bottom center hole 1448 in 1434.
The example of the implementation of speaker transducer 800 shown in Fig. 8 is gone back to, in fig. 15 it is shown that dividing plate 812
Bottom view.As described in previously with reference to Figure 11, dividing plate 812 has downside 1100, and it can include a pair of coaxial radial surfaces
1102 and 1104, they are configured to supplement the diameter chi of annular external roof 842 and annular, outer permanent magnet 834
It is very little.Furthermore it is possible to form one or more air ducts 1502 on the downside 1100 of dividing plate 812, with from magnetic air gap 1000 to
Speaker housings (not shown) provides sound outlet.
In an example of implementation of the present invention, the general thickness of speaker transducer structure can be in 3.5mm extremely
Between 4mm.These speaker transducer sizes are only provided as example, because it would be recognized by those skilled in the art that can be with
In the speaker system that above-mentioned configuration is bound to various sizes and shape, and without being confined to dimensions as described above, but
It can be based on desired application and be changed.
Generally, such as " it will be connected to " herein, and " being configured for connection to " and " being fixed to " is (for example, first component " connection
To " or " being configured to connect to ", or " being fixed to " second component) term be used to refer to two or more parts or element
Between structure, function, machinery, electronics, signal, light, magnetic, electromagnetism, ion or jet relation.Equally, it is above-mentioned by a part
The fact that be connected to second component is not intended to exclude following possibility：Other part may reside in the first and second parts
Between, and/or with the first and second parts be operably associated or engage.
Although merely illustrating the examples of features of different implementations in preceding specification, the present invention is not limited to
Example illustrated before.Those skilled in the art will appreciate, it will can be used by the present invention of appended claims
In various further implementations and modification.Specifically, the combination of the various features of described implementation is possible to deposit
, as long as these features are not conflicting.Therefore, before having been presented for implementation for the sake of illustrating and describing
Description.This is not detailed, and invention claimed is not defined in into disclosed exact form yet.As described above may be used
To obtain modifications and changes, or these modifications and changes can be obtained according to the present invention is implemented.Claim and its equivalent
Thing defines the scope of the present invention.
Claims (21)
1. a kind of vibrating membrane for speaker transducer, the speaker transducer includes voice coil loudspeaker voice coil, bobbin, with circle
First magnet assembly of portion's magnet, annular, outer top plate and circular interior top plate, with annular outer magnet and circular interior magnetic
Second magnet assembly of body, by the circular inner magnet of first magnet assembly, the annular, outer top plate, the circle
The air gap that shape inner top, the annular outer magnet of second magnet assembly and the circular inner magnet are limited, with
And around suspension element, the vibrating membrane includes：
Periphery, has a diameter larger than the diameter of the circular inner magnet of first magnet assembly and less than the annular, outer
The interior diameter of top plate,
Wherein, the diameter of the circular inner magnet of first magnet assembly is approximately equal to the straight of the circular interior top plate
Footpath, the diameter of the circular inner magnet of second magnet assembly, and
Wherein, the interior diameter of the annular, outer top plate is approximately equal to the annular, outer magnetic of second magnet assembly
The interior diameter of body；And
Neighboring, it is configured to connect to the inward flange around suspension element and the bobbin, wherein, the line
Coil is located in the air gap,
Wherein described circular suspension element includes the short flange of substantially flat, and it is arranged on the circular suspension element and institute
State between bobbin, and
Wherein described neighboring is set directly above at least a portion of the short flange.
2. vibrating membrane as claimed in claim 1, wherein, the bobbin is connected to the voice coil loudspeaker voice coil, wherein, the voice coil loudspeaker voice coil is located at
In the air gap.
3. vibrating membrane as claimed in claim 2, wherein, the speaker transducer further comprises dividing plate, and the ring
The dividing plate is connected to around suspension element.
4. vibrating membrane as claimed in claim 3, wherein, the vibrating membrane is by metal, plastics, dipping paper, reinforcing paper or dipping
Textile construction.
5. vibrating membrane as claimed in claim 4, wherein the metal is titanium, steel or aluminium.
6. vibrating membrane as claimed in claim 3, wherein the vibrating membrane is substantially plane.
7. vibrating membrane as claimed in claim 6, further comprises the bulge-structure on the vibrating membrane.
8. vibrating membrane as claimed in claim 3, wherein the vibrating membrane is recessed or convex in shape.
9. vibrating membrane as claimed in claim 8, wherein the vibrating membrane is spun by metal, plastics, dipping paper, reinforcing paper or dipping
Fabric is constructed.
10. vibrating membrane as claimed in claim 9, wherein, the metal is titanium, steel or aluminium.
11. vibrating membrane as claimed in claim 8, further comprises the bulge-structure on the vibrating membrane.
12. vibrating membrane as claimed in claim 1, wherein, first magnet assembly includes annular outer magnet, and described
Air gap includes being arranged on the circular inner magnet of first magnet assembly and the annular of first magnet assembly
Gap between external magnets.
13. vibrating membrane as claimed in claim 12, wherein, the bobbin is connected to the voice coil loudspeaker voice coil, wherein, the voice coil loudspeaker voice coil position
In the air gap.
14. vibrating membrane as claimed in claim 13, wherein the vibrating membrane is substantially plane.
15. vibrating membrane as claimed in claim 14, further comprises the bulge-structure on the vibrating membrane.
16. vibrating membrane as claimed in claim 15, wherein, the vibrating membrane is by metal, plastics, dipping paper, reinforcing paper or leaching
Stain textile construction.
17. vibrating membrane as claimed in claim 16, wherein the metal is titanium, steel or aluminium.
18. vibrating membrane as claimed in claim 13, wherein the vibrating membrane is recessed or convex in shape.
19. vibrating membrane as claimed in claim 18, wherein the vibrating membrane is by metal, plastics, dipping paper, reinforcing paper or dipping
Textile construction.
20. vibrating membrane as claimed in claim 19, wherein, the metal is titanium, steel or aluminium.
21. vibrating membrane as claimed in claim 18, the vibrating membrane is additionally included in the bulge-structure on the vibrating membrane.
Applications Claiming Priority (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161474527P | 2011-04-12 | 2011-04-12 | |
| US201161474592P | 2011-04-12 | 2011-04-12 | |
| US201161474555P | 2011-04-12 | 2011-04-12 | |
| US201161474611P | 2011-04-12 | 2011-04-12 | |
| US61/474,555 | 2011-04-12 | ||
| US61/474,527 | 2011-04-12 | ||
| US61/474,592 | 2011-04-12 | ||
| US61/474,611 | 2011-04-12 | ||
| US13/443,746 US9185491B2 (en) | 2011-04-12 | 2012-04-10 | Reinforced diaphragm for a low profile loudspeaker transducer with two sets of inner and outer magnets |
| US13/443,746 | 2012-04-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102740193A CN102740193A (en) | 2012-10-17 |
| CN102740193B true CN102740193B (en) | 2017-09-29 |
Family
ID=45939222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210174589.8A Active CN102740193B (en) | 2011-04-12 | 2012-04-12 | The reinforcing vibrating membrane of low profile loudspeaker transducer |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9185491B2 (en) |
| EP (1) | EP2512155B1 (en) |
| JP (1) | JP6005974B2 (en) |
| KR (1) | KR101880250B1 (en) |
| CN (1) | CN102740193B (en) |
| BR (1) | BR102012008646B1 (en) |
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| US8879774B2 (en) * | 2011-04-12 | 2014-11-04 | Harman International Industries, Incorporated | Loudspeaker magnet assembly with two inner magnets comprising a central bore |
| US11528562B2 (en) | 2011-12-23 | 2022-12-13 | Shenzhen Shokz Co., Ltd. | Bone conduction speaker and compound vibration device thereof |
| US11601761B2 (en) | 2011-12-23 | 2023-03-07 | Shenzhen Shokz Co., Ltd. | Bone conduction speaker and compound vibration device thereof |
| CN109362007B (en) * | 2013-04-01 | 2020-12-08 | 日本先锋公司 | Loudspeaker device |
| USD783570S1 (en) * | 2013-06-11 | 2017-04-11 | Harman International Industries, Incorporated | Acoustical horn of a loudspeaker |
| WO2020220724A1 (en) | 2019-04-30 | 2020-11-05 | 深圳市韶音科技有限公司 | Acoustic output apparatus |
| US11582564B2 (en) | 2014-01-06 | 2023-02-14 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11570556B2 (en) | 2014-01-06 | 2023-01-31 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US9736592B2 (en) | 2015-03-20 | 2017-08-15 | Google Inc. | Transducer components and structure thereof for improved audio output |
| US10911875B2 (en) * | 2018-08-30 | 2021-02-02 | Apple Inc. | Electro-acoustic transducer diaphragm with integrated structural features, and related systems and methods |
| KR102601236B1 (en) * | 2018-11-30 | 2023-11-13 | 주식회사 씨케이머티리얼즈랩 | Wide band actuator |
| USD943551S1 (en) * | 2019-05-23 | 2022-02-15 | Tymphany Acoustic Technology (Huizhou) Co., Ltd. | Diaphragm for loudspeaker |
| KR102115379B1 (en) * | 2019-06-11 | 2020-05-26 | 에스텍 주식회사 | The slim speaker |
| US20240267677A1 (en) * | 2021-09-14 | 2024-08-08 | Sonos, Inc. | High-precision alignment features for audio transducers |
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- 2012-04-12 BR BR102012008646-8A patent/BR102012008646B1/en active IP Right Grant
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101880250B1 (en) | 2018-07-20 |
| EP2512155B1 (en) | 2016-06-08 |
| US9185491B2 (en) | 2015-11-10 |
| KR20120116368A (en) | 2012-10-22 |
| CN102740193A (en) | 2012-10-17 |
| EP2512155A1 (en) | 2012-10-17 |
| JP2012222831A (en) | 2012-11-12 |
| BR102012008646B1 (en) | 2020-11-10 |
| US20120263341A1 (en) | 2012-10-18 |
| JP6005974B2 (en) | 2016-10-12 |
| BR102012008646A2 (en) | 2014-01-07 |
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